[GOPcapitalist]

Here is perhaps the most famous of many quotes in which Abraham Lincoln asserted a labor theory of value:

"[S]ince then, if we except the light and the air of heaven, no good thing has been, or can be enjoyed by us, without having first cost labour. And, inasmuch [as] most good things are produced by labour, it follows that [all] such things of right belong to those whose labour has produced them. But it has so happened in all ages of the world, that some have laboured, and others have, without labour, enjoyed a large proportion of the fruits. This is wrong, and should not continue. To [secure] to each labourer the whole product of his labour, or as nearly as possible, is a most worthy object of any good government." - Abraham Lincoln, December 1, 1847, Collected Works vol. 1, pp. 411-412

[LS]

Ah, but you fail to read on. Later, Lincoln said that the PURPOSE of labor was that every man should start his own farm/small business. Labor was a starting point. Moreover, Lincoln soon modified these views (note the date) and while he always "stood up" for labor, he also, as an attorney, represented banks and railroads in numerous cases which he won. You might look at some of his court cases to see somewhat contradictory arguments.

With Calhoun, however, his purpose was not emancipation but eventually the quasi-enslavement of free whites. Read carefully his "Disquisitions" (since I went through this on another thread, I'm not going to start up again with new quotations) and you'll see he in fact was, as Richard Hofstadter called him, the "Marx of the Master Class."